Question

find the circumference of Tyler's bike tire if the diameter is 72 inches.
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Answer 1

Circumference=2piradius

Using that, you need to find the radius (which is one half of the diameter) 72/2=36

That is when you can plug the radius in: Circumference=2pi36

2*36=72. 72*pi is 72pi, or if you want to use 3.14, 72*3.14=226.08